package com.controller;

import com.google.code.kaptcha.impl.DefaultKaptcha;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;

/**
 * @author Ychiha
 * @version 1.0
 * @date 9/1/2022 下午5:43
 */
@Controller
public class LoginController {

    @Autowired
    private DefaultKaptcha captchaProducer;

    /**
     * 获取验证码
     *
     * @param httpServletRequest
     * @param httpServletResponse
     * @throws Exception
     */
    @RequestMapping("/defaultKaptcha/*")
    public void defaultKaptcha(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
            throws Exception {
        byte[] captchaChallengeAsJpeg = null;
        ByteArrayOutputStream jpegOutputStream = new ByteArrayOutputStream();

        try {
            // 生产验证码字符串并保存到session中
            String createText = captchaProducer.createText();
            httpServletRequest.getSession().setAttribute("vrifyCode", createText);
            // 使用生产的验证码字符串返回一个BufferedImage对象并转为byte写入到byte数组中
            BufferedImage challenge = captchaProducer.createImage(createText);
            ImageIO.write(challenge, "jpg", jpegOutputStream);
        } catch (IllegalArgumentException e) {
            httpServletResponse.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }

        // 定义response输出类型为image/jpeg类型，使用response输出流输出图片的byte数组
        captchaChallengeAsJpeg = jpegOutputStream.toByteArray();
        httpServletResponse.setHeader("Cache-Control", "no-store");
        httpServletResponse.setHeader("Pragma", "no-cache");
        httpServletResponse.setDateHeader("Expires", 0);
        httpServletResponse.setContentType("image/jpeg");
        ServletOutputStream responseOutputStream = httpServletResponse.getOutputStream();
        responseOutputStream.write(captchaChallengeAsJpeg);
        responseOutputStream.flush();
        responseOutputStream.close();



    }


    @RequestMapping("/dologin")
    @ResponseBody
    public String login(
                        @RequestParam(value = "code") String code,
                        HttpServletRequest request
    ){
        String vifyCode = (String) request.getSession().getAttribute("vrifyCode");
        System.out.println(vifyCode);
        System.out.println(code);
        if(code != null && code !=""){
            if(code.equals(vifyCode)){
                //检测账号密码
                if(true){
                    return "success";
                }
            }else{
                return "wasted";
            }
        }
        return "web404";
    }



}
